Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With December's onset, the weather shows a temperature decrease, transitioning from a chilly 43.9°F (6.6°C) in November to a cold 33.3°F (0.7°C). Throughout December nights, South Milwaukee records a consistent low-temperature averaging a freezing cold 25.3°F (-3.7°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In South Milwaukee, during December, the rain falls for 7 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, in South Milwaukee, there are 131.9 rainfall days, and 18.54" (471mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In South Milwaukee, in December, during 9.5 snowfall days, 1.14" (29mm) of snow is typically accumulated. Throughout the year, in South Milwaukee, there are 45.2 snowfall days, and 7.83" (199mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December in South Milwaukee, sunrise is at 7:03 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:27 pm CST.
Sunshine
The average sunshine in December in South Milwaukee, Wisconsin, is 3.9h.UV index
The months with the lowest UV index in South Milwaukee, Wisconsin, are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 1 in December translates into these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Frequently asked questions
How cold is December in South Milwaukee?
What is the average humidity in December in South Milwaukee?
How much does it rain in South Milwaukee in December?
How much does it snow in South Milwaukee in December?
What is the month with the shortest days in South Milwaukee?
What is the average length of the day in December in South Milwaukee?
What time are sunrise and sunset in December in South Milwaukee?
How many hours of sunshine does South Milwaukee have in December?
What are the months with the lowest UV index in South Milwaukee?
What is the UV index reading in December in South Milwaukee?
Average temperature in December
South Milwaukee, WI
- Average high temperature in December: 33.3°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
South Milwaukee, WI
- Average pressure in December: 30.08"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
South Milwaukee, WI
- Average wind speed in December: 11.8mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in December
South Milwaukee, WI
- Average humidity in December: 81%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in December
South Milwaukee, WI
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is July (2.4").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in December
South Milwaukee, WI
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
South Milwaukee, WI
- Average snowfall in December: 1.14"
The month with the highest snowfall is January (2.01").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
South Milwaukee, WI
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Milwaukee, WI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
South Milwaukee, WI
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in December
South Milwaukee, WI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
South Milwaukee, WI
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
South Milwaukee, WI
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
South Milwaukee, Wisconsin, USA
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